I've only had a caffeinated alcoholic beverage once. It was a Red Bull and vodka. After consuming it, I remember feeling the urge to do some jumping jacks, instead of, say, dancing like the other normal partygoers. That's it. But as you guys well know, caffeinated alcoholic beverages (CABs) are ridiculously popular. Head to a convenience store to stock up before a big night and you could encounter as many as 25 different brands of these beverages, according to the Centers for Disease Control and Prevention. Heck, you can even find anti-energy drinks, as Robert noted in a post a while back. But what's so bad about mixing alcohol and energy drinks?